/Engine/Source/Runtime/Analytics/AnalyticsET/Public/AnalyticsSessionSummaryManager.h
Special key handled by the manager for the analytics backend. Its value must be one of EAnalyticsSessionShutdownType enum value.
static const [TAnalyticsProperty](API\Runtime\Analytics\Interfaces\TAnalyticsProperty)< int32 > ShutdownTypeCodeProperty = TEXT("ShutdownTypeCode");